Miniature rose plant named ‘KORone001’

ABSTRACT

A new and distinct variety of Miniature Rose Plant, herein referred to by its cultivar name, ‘KORone001’, is provided which forms attractive, double, red colored blossoms. The vegetation is vigorous and the growth habit is upright. Attractive ornamental foliage is formed. The new variety is particularly well suited for providing distinctive ornamentation in the landscape.

Botanical/commercial classification:

Latin name—Rosa hybrida.

Common name—Miniature Rose Plant.

Varietal denomination—‘KORone001’.

CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims priority to Plant Breeders' Right ApplicationNumber 2018/1391, which was filed at Community Plant Variety Office inthe European Union on May 28, 2018, the contents of which are herebyincorporated by reference for all purposes.

SUMMARY OF THE INVENTION

The new variety of Rosa hybrida Miniature Rose Plant of the presentinvention was created during 2013 at Offenseth-Sparrieshoop, Germany byartificial pollination wherein two parents were crossed which previouslyhad been studied in the hope that they would contribute the desiredcharacteristics. The female parent (i.e., seed parent) of the newvariety was an unnamed seedling (non-patented in the United States). Themale parent (i.e., pollen parent) of the new variety was the ‘KORpot028’variety (U.S. Plant Pat. No. 25,004).

The parentage can be summarized as follows:unnamed seedling x ‘KORpot028’

The seeds resulting from the above pollination were sown and smallplants were obtained which were physically and biologically differentfrom each other. Selective study resulted in the identification of asingle plant of the new variety.

It was found that the new Miniature Rose Plant of the present inventionpossesses the following combination of characteristics:

-   -   (a) forms attractive, double, red colored blossoms,    -   (b) exhibits an upright growth habit,    -   (c) forms vigorous vegetation, and    -   (d) forms attractive ornamental foliage.

The new variety well meets the needs of the horticultural industry. Itcan be grown to advantage as ornamentation in parks, gardens, publicareas, and in residential settings. Accordingly, the plant isparticularly well suited for growing in the landscape.

The new variety can be readily distinguished from its ancestors. Morespecifically, the unnamed seedling seed parent exhibits a differentflower color, a different growth habit, and smaller flowers compared tothe new variety. Additionally, the ‘KORpot028’ variety (i.e., pollenparent) exhibits an upright to bushy growth habit, whereas the newvariety displays an upright growth habit. Also, the ‘KORpot028’ varietydisplays flowers of a different color and smaller flowers compared tothe new variety. Moreover, the new variety can be readily distinguishedfrom non-parental related similar varieties. For example, the ‘Meilavio’variety (U.S. Plant Pat. No. 10,845) displays flowers which have ashorter duration, more petals, and are less fragrant compared to the newvariety. In addition, the ‘KORscamer’ variety (U.S. Plant Pat. No.24,197) displays flowers with a lower petal count and are less fragrantcompared to the new variety.

The new variety has been found to undergo asexual propagation in KleinOffenseth-Sparrieshoop, Germany by a number of routes such as vegetativecuttings. Asexual propagation techniques in Germany, such as vegetativecuttings, have shown that the characteristics of the new variety arehomogeneous, stable, and strictly transmissible by such asexualpropagation from one generation to another. Accordingly, the new varietyundergoes asexual propagation in a true-to-type manner.

The new variety has been named ‘KORone001’.

BRIEF DESCRIPTION OF THE PHOTOGRAPHS

The accompanying photograph shows, as nearly true as it is reasonablypossible to make the same in color illustrations of this character, atypical specimen of the new variety. The illustrated rose plant of thenew variety was approximately twelve weeks of age and was observed atKlein Offenseth-Sparrieshoop, Germany while growing indoors on its ownroots in 6.0 cm containers.

FIG. 1—illustrates a specimen of a blossom.

DETAILED BOTANICAL DESCRIPTION

The chart used in the identification of colors is that of The RoyalHorticultural Society (R.H.S. Colour Chart, 2015 edition). Theterminology which precedes reference to the chart has been added toindicate the corresponding color in more common terms. The descriptionis based on the observation of a one-year-old specimen of the newvariety, observed during February, while growing in a one-galloncontainer on its own roots in a greenhouse at Cochranville, Pa.

-   Class: Miniature Rose Plant.-   Plant:    -   -   Habit.—Very upright.        -   Height.—Approximately 50.0 cm on average.        -   Width.—Approximately 30.0 cm on average.-   Branches:    -   -   Stem color.—Immature stems: commonly near Yellow-Green Group            144A. Mature stems: commonly near Greyed-Brown Group N199B.        -   Stem texture.—Immature stems: glabrous. Mature stems: smooth            to rough where the wood is becoming harder.        -   Main stem length.—Approximately 50.0 cm on average.        -   Secondary stem length.—Approximately 22.0 cm on average.        -   Thorns.—Number approximately 8 thorns per 5.0 cm of stem            length on average. Young thorns: amount is moderate, length            is approximately 4.0 mm on average, width is approximately            1.0 mm at point of attachment on average, and color is            commonly near Greyed-Orange Group 167D. Old thorns: amount            is moderate, length is approximately 5.0 cm on average,            width is approximately 1.0 mm at point of attachment on            average, and color is commonly near Brown Group 200B.-   Foliage:    -   -   General appearance.—Ornamental.        -   Young foliage.—Upper surface color commonly near Green Group            137A suffused with near Greyed-Orange Group 166A and near            Greyed-Purple Group 183A; and venation of near Greyed-Purple            Group 183A. Under surface color: commonly near Green Group            137C suffused with near Greyed- Purple Group 183A; and            venation of near Greyed-Purple Group 183D.        -   Old foliage.—Upper surface color commonly near Green Group            139A with indistinguishable venation. Under surface color:            commonly near Green Group 138A with venation of near Green            Group 138B.        -   Petiole.—Upper surface: texture is smooth; color is commonly            near Yellow-Green Group 144A. Under surface: texture is            mostly smooth with sparse prickles and color is commonly            near Yellow-Green Group 146B. Length: approximately 4.5 cm            on average.        -   Rachis.—Color: upper surface is commonly between near Green            Group 143C and Green Group 143A, and under surface is            commonly near Green Group 143C. Size: length is            approximately 10.0 cm on average. Surface texture: smooth.        -   Stipules.—Length: approximately 1.5 cm on average. Width:            approximately 5.0 mm on average. Margin: entire to erose.            Color: upper surface is commonly near Yellow-Green Group            144A and under surface is commonly near Yellow-Green 144B.        -   Leaf margin.—Serrate.        -   Glossiness of upper side of leaf.—Semi-glossy.-   Leaflets:    -   -   Number.—3, 5, and 7.        -   Arrangement.—Odd-pinnate.        -   Shape.—Ovate; apex is acute; and base is rounded.        -   Venation pattern.—Reticulate.        -   Texture.—Upper surface is smooth; under surface is smooth.        -   Terminal leaflet.—Length is approximately 6.0 cm on average;            width is approximately 3.7 cm on average; margin undulation            is weak; and the glossiness intensity of the upper surface            is moderate.        -   Lower leaflets.—Length is approximately 3.5 cm on average            and width is approximately 2.2 cm on average.        -   5-leaflet leaf.—Length is approximately 12.5 cm on average            and width is approximately 9.0 cm on average.-   Inflorescence:    -   -   Number of flowers.—About 1 to 3 blooms on average on a plant            at once.        -   Number of blossoms per stem.—Typically 1 bloom per stem on            average.        -   Type.—Single.        -   Peduncle.—Color: commonly Yellow-Green Group 144A. Diameter:            approximately 3.0 mm on average. Length: approximately 7.0            cm on average. Surface texture: glabrous. Strength: strong.        -   Sepals.—Number: commonly 5. Upper surface color and texture:            covered in short pubescence and color is commonly near            Yellow-Green Group 144A. Under surface color and texture:            puberulent and color is commonly near Yellow-Green Group            144A. Size: length is approximately 2.5 cm on average and            width is approximately 6.0 mm on average. Margin: entire            with occasional extensions on two or three sepals measuring            approximately 7.0 mm in length and approximately 3.0 mm in            width. Shape: lanceolate; apex is acute to aristate; and            base is truncate or flat as it joins the receptacle.        -   Bud.—Shape: globular. Size: length is approximately 2.3 cm            on average; width is approximately 1.7 cm on average. Color            (when opening): commonly near Red Group 46A.        -   Flower.—Form: double, cuplike. Profile: flat. Height:            approximately 5.0 cm on average. Diameter: approximately            10.0 cm on average. Duration: flower lasts on the plant for            35 days on average.        -   Fragrance.—Light sweet fragrance.        -   Petal.—Number: approximately 65 on average. Drop: good.            Length: inner petals are approximately 3.5 cm on average;            outer petals are approximately 4.2 cm on average. Width:            inner petals are approximately 2.5 cm on average; outer            petals are approximately 4.5 cm on average. Shape: overall            shape is broadly obovate; apex is rounded; and base is            cuneate. Margin: entire. Margin undulation: strong. Texture:            upper and lower surfaces are glabrous. Color with first and            fully open: upper surface is commonly near Red-Purple Group            N57A with basal spot of commonly near Yellow Group 7D; and            under surface is commonly near Red-Purple Group 58C with            basal spot of commonly near Yellow Group 4D. Color when            fading: upper surface is commonly near Red-Purple 58B with            basal spot of near Yellow Group 10D; under surface is            commonly near Red-Purple Group 65C with basal spot of near            Yellow Group 11D.        -   Petaloids.—Number: 5 on average per flower. Color: upper            surface is commonly near Red- Purple Group N57A with a basal            spot of near Yellow Group 7D; under surface is commonly near            Red-Purple Group 58C with a basal spot of near Yellow Group            4D. Length: approximately 3.2 cm on average. Width:            approximately 2.0 cm on average. Texture: smooth. Margins:            variable, entire to erose. Shape: variable, oblong and            mostly curving inward. Apex: round. Base: cuneate.        -   Stamen.—Number: approximately 115 on average. Anthers:            number is about 115; color is commonly near is commonly near            Greyed-Orange Group 164B; shape is oval; and length is            approximately 2.5 mm on average. Filaments: length is            approximately 7.0 mm on average and color is commonly near            Greyed-Orange Group 164D.        -   Pistils.—Arrangement: separate and free. Number:            approximately 139. Style: color is commonly near Red-Purple            Group 58B and some exhibiting a small hint of Yellow Group            11C at the base of the stigma; length is less than 6.0 mm on            average. Stigma: color is commonly near Greyed- Yellow Group            162B; diameter is commonly less than 1.0 mm on average; and            shape is fan shaped.        -   Ovary.—Length is approximately 2.0 mm on average, width is            approximately 1.0 mm on average, and color is commonly near            White Group 155D.        -   Receptacle.—Achenes stand on the bottom and wall; diameter            is approximately 1.3 cm on average, shape is round, color is            commonly near Yellow-Green Group 144A, and surface texture            is smooth.        -   Pollen.—None observed.        -   Hips/seed.—None observed.-   Development:    -   -   Vegetation.—Dark green, vigorous and strong; the amount of            vegetation growth per season is minimal.        -   Blossoming.—Produces few large individual blooms at a given            time; will rebloom again in the same season.        -   Hardiness.—Unknown.        -   Resistance to disease.—Good resistance for Botrytis            (Botrytis cinerea) disease under normal greenhouse growing            conditions in Cochranville, Pa.

Plants of the ‘KORone001’ variety have not been observed under allpossible environmental conditions to date. Accordingly, it is possiblethat the phenotypic expression may vary somewhat with changes in lightintensity and duration, cultural practices, and other environmentalconditions.

I claim:
 1. A new and distinct Miniature Rose Plant characterized by thefollowing combination of characteristics: (a) forms attractive, double,red colored blossoms, (b) exhibits an upright growth habit, (c) formsvigorous vegetation, and (d) forms attractive ornamental foliage;substantially as herein shown and described.